LaPorte County, Indiana ZIP codes
14 ZIP codes are in LaPorte County, plus 3 that cross in from neighboring counties. It's part of the Michigan City-La Porte, IN metro area.
- ZIP codes
- 14
- Population in these ZIPs
- 117,934
- Avg. median income
- $70,500population-weighted
- Cities & towns
- 12
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in LaPorte County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 46340 | Hanna | 1,524 | $58,717 | $281,100 |
| 46345 | Kingsbury | 66 | — | $185,900 |
| 46346 | Kingsford Heights | 1,358 | $57,830 | $166,600 |
| 46348 | La Crosse | 1,217 | $64,375 | $214,600 |
| 46350 | La Porte | 44,763 | $74,307 | $275,300 |
| 46352 PO Box | La Porte | — | — | — |
| 46360 | Michigan City | 43,817 | $59,266 | $233,200 |
| 46361 PO Box | Michigan City | — | — | — |
| 46365 | Mill Creek | 992 | $98,047 | $320,200 |
| 46371 | Rolling Prairie | 3,396 | $99,830 | $320,700 |
| 46382 | Union Mills | 1,835 | $95,208 | $305,500 |
| 46390 | Wanatah | 2,554 | $87,639 | $284,000 |
| 46391 | Westville | 8,986 | $82,692 | $350,500 |
| 46574 | Walkerton | 7,426 | $76,181 | $234,100 |
ZIP codes partly in LaPorte County
These ZIP codes are mostly in a neighboring county but cover part of LaPorte County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 46532 | Hamlet | Starke County | 1,921 | $84,866 | $205,200 |
| 46552 | New Carlisle | St. Joseph County | 7,047 | $91,341 | $278,500 |
| 46554 | North Liberty | St. Joseph County | 4,405 | $88,068 | $271,600 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in LaPorte County
Nearby counties
Frequently asked questions
How many ZIP codes are in LaPorte County, Indiana?
14 ZIP codes are mainly in LaPorte County, and 3 more ZIP codes from neighboring areas reach partly into it.
What cities are in LaPorte County?
ZIP codes in LaPorte County use the city names Hanna, Kingsbury, Kingsford Heights, La Crosse, La Porte, Michigan City, Mill Creek, Rolling Prairie, Union Mills, Walkerton, Wanatah and Westville.
What metro area is LaPorte County in?
LaPorte County is part of the Michigan City-La Porte, IN metropolitan statistical area.